diff options
Diffstat (limited to 'gnulib/tests/test-ldexp.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/tests/test-ldexp.c | 48 |
2 files changed, 48 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 4fc10daa05477586fea99b6b3ca02a87d1102fa diff --git a/gnulib/tests/test-ldexp.c b/gnulib/tests/test-ldexp.c new file mode 100644 index 00000000..4d0339ea --- /dev/null +++ b/gnulib/tests/test-ldexp.c @@ -0,0 +1,48 @@ +/* Test of ldexp() function. + Copyright (C) 2010 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +/* Written by Bruno Haible <bruno@clisp.org>, 2010. */ + +#include <config.h> + +#include <math.h> + +#include "signature.h" +SIGNATURE_CHECK (ldexp, double, (double, int)); + +#include "macros.h" + +volatile double x; +double y; + +int +main () +{ + /* A particular value. */ + x = 0.6; + y = ldexp (x, 0); + ASSERT (y >= 0.5999999999 && y <= 0.6000000001); + + x = 0.6; + y = ldexp (x, 1); + ASSERT (y >= 1.199999999 && y <= 1.200000001); + + x = 0.6; + y = ldexp (x, -1); + ASSERT (y >= 0.2999999999 && y <= 0.3000000001); + + return 0; +} |